A. Below are sample research questions. Identify which T-test (Independent or Dependent) are you going to use to test your hypothesis. Expound in 2-4 sentences 4. A personnel consultant was hired to study the influence of sick-pay benefits on absenteeism. She randomly selected samples of hourly employees who do not get paid when out sick and salaried employees who receive sick pay. Using the following data on the number of days absent during a one-year period, test the null hypothesis that hourly and salaried employees do not differ with respect to absenteeism.

Q: The type of household for the U.S. population and for a random sample of 411 households from a…

A: Given that

Q: ording to the Bureau of Labor Statistics (BLS), the median weekly earnings for men in the sales and…

A: Given data :  $627, $617, $732, $735, $639, $569, $494, $566, $648, $767, $683, $604, $727, $896,…

Q: Find the value of the test statistic. W = Find the p-value. (Round your answ p-value %3D What is…

A: We are required to first state the null hypothesis and then test the hypothesis using the samples…

Q: 5. Researchers investigating whether number of people sleeping in a room affects the number of hours…

A: Given that  Fcal=0.3246 df1=3 , df2=20 Alpha=5%=0.05 ,

Q: To determine how American college students feel about commuting, 100 students at a private…

A: To determine how American college students feel about commuting, 100 students at a private…

Q: Which of the following situations is appropriate for a two-factor (also called two-way) ANOVA test?…

A: Which of the following situations is appropriate for a two-factor (also called two-way) ANOVA…

Q: A magazine subscriber study asked, "In the past 12 months, when traveling for business, what type of…

A: For testing whether the type of tickets purchased is independent of the type of flight, the observed…

Q: With your sample of 25 inmates, you want to test if the population mean age is different from 40 at…

A: To determine whether the test should be one-tailed or two-tailed, we need to consider the research…

Q: What is the mode for the following sample of n = 11 scores? Scores: 1, 2, 2, 2, 3, 3, 4, 5, 6, 6, 7…

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Q: Errors were found and the researcher corrected the data by multiplying by 2.5 and followed by…

A:

Q: Leaf Blower wer Yes No 80 78

A: Given, Observed frequency (O) table: a) Expected frequency (E)  = (row total*column total)/Grand…

Q: A poll asked respondents if they had taken a vacation in the last year. The respondents were…

A: Given information is: From above table, we can conclude the following: Total number of respondents…

Q: Health insurance benefits vary by the size of the company (the Henry J. Kaiser Family Foundation…

A: a:For the given data, the chi-square test for association is appropriate.Null Hypothesis:H0: The…

Q: In the US, 45.4% of all people have type O blood, 39% have type A blood, 11.9% have type B blood and…

A:

Q: In an experiment, the variable that is manipulated is called the…    A. Confounding variable.  B.…

A: The given statement is 'in an experiment, the variable that is manipulated is called the'.

Q: The success status of 300 students who took the university exam from 3 different cities is as…

A:

Q: Number of Cigarettes Smok 1-14 15-34

A: #   wear seat belts  dont wear seat belts total 0 188 160 348 1-14 27 23 50 15-34 41 34 75…

Q: b. Which group is more likely to have taken a vacation in the last year: college graduates or…

A: Given data:   Yes No Total College Graduate 183 67 250 Not a College Graduate 126 124 250…

Q: 40 blood groups ,The answer was recorded as shown below: OOABAOAAAOBOBOOAOOAAAA AB A B A A O O A O O…

A: 1. It is grouped data and the type of the data  is discrete frequency distribution. The discrete…

Q: Records from the Washington Department of Licensing show that 47 former SFCC business students have…

A: Formula : Mean = x̄ = Σx/n

Q: a. Complete the table by filling in the expected frequencies. Round to the nearest whole number:…

A: Test is that whether the distribution of blood type is different for millionaires.

Q: 1. Determine the variance of the following 10 sample data: 10,12,9,18, 14,16,14,18,19 and 20

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Q: 1. The following questions refer to the following data: 2, -1, 0, 2. What is the sample mean of the…

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Q: State your conclusion. Reject HO. We conclude that the type of ticket purchased is independent of…

A: Observed frequency table :We use the chi-square test for independence,

Q: A professor wants to know which type of instructional mode students had more satisfaction.  The…

A: Given : Online(1) Hybrid(2) Face to Face(3) 3 1 2 3 3 2 4 1 2 3 3 1 3 2 3

Q: Q. 60 What are the main differences between cluster sampling and stratified sampling?

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Q: Suppose that a middle school is using two different teaching formats for their 6th grade math…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: Q3. Paired sample t test can be used in an analysis involving pre-test and post-test data or in…

A: Paired sample t test is used under following assumptions: 1) sample sizes are equal. 2) The two…

Q: Four scenarios of statistical studies are given below. Decide which study uses a population…

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Q: State whether each situation has independent or paired (dependent) samples. a A researcher wants to…

A: Solution: (a):Independent samples (b):Independent samples  Explanation: There are two different…

Q: A marketing agency wanted to determine if a new commercial changed people's opinion about a company.…

A: Statistical hypothesis means the decision about a population parameter. Here we look at the data we…

Q: 4. How many determiners are part of the sample underlying the following statistical model?…

A: We need determiners part of the sample underlying the following.   Let us see,   Let's first define…

Q: 3. Recent research suggests that American teenagers spend too much time on extracurricular…

A: From the provided information, The data values are as follow: 0, 0, 0, 0, 0, 1, 1, 2, 2, 2, 3, 3, 4,…

Q: A teacher wants to know if there is a significant difference in reading ability between a sample of…

A: An appropriate choice of the test is to be adopted in order to test the claim of difference in the…

Q: 1. A marketing manager for a cell phone company claims that more than 35% of children aged 10 – 11…

A: From the provided information, Sample size (n) = 5000 Out of which 1805 had cell phones. Level of…

Q: 3. What is the sample mean for the following sample of scores? Scores: 1, 2, 5, 4

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Q: The Bureau of Labor Statistics reports that the official unemployment rate for Black people was…

A: Variables are of different types. The correct classification of variables and the identification of…

Q: Income Tax and the IRS. In 2010, the Internal Revenue Service (IRS) sampled 308,946 tax returns to…

A: a)Sampling error:When a sample is used to estimate a population characteristic the error resulting…

Q: You are interested in investigating if there a difference in mean cholesterol between the four diet…

A: The objective is to identify the type of sample and outcome for the following scenario:You are…